SpaceAtlas Space Object Data
NASA JPL SBDB · 2016 JY5

2016 JY5

2016 JY5 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.088 AU it takes 1.13 yr to circle the Sun.

Apollo Observations: 58
Orbital Period · P
1.13 yr
v(q)
35.4 km/s
v(Q)
23 km/s
Diameter · ≈
0.01 km
TJ
5.67
Eccentricity · e
0.2113

Orbit and dynamics

Between its closest point (0.858 AU) and its farthest (1.318 AU), the heliocentric distance changes by 0.46 AU over every revolution.

One full revolution takes 1.13 yr (415 days), computed from the semi-major axis of 1.088 AU.

An eccentricity of 0.211 makes the orbit moderately elongated.

Its inclination of 4.63° keeps it close to the plane of the ecliptic.

By the vis-viva equation its orbital speed rises to 35.4 km/s at perihelion and falls to 23 km/s at aphelion.

Because q < 1 AU and Q > 1 AU, this orbit geometrically intersects the region of Earth's orbit.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 27.1 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.01 km.

Observation record and orbit quality

Astrometry from 58 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4242 arcseconds.

Condition code U = 6 indicates a moderately constrained orbit; predictions decades ahead still carry noticeable uncertainty.

About these computed values

Orbital periods, perihelion and aphelion speeds, and diameter estimates on this page are computed by SpaceAtlas from the JPL SBDB orbital elements. They are derived quantities, not values copied from the source catalogue.

Orbital Parameters

Semi-Major Axis
1.088 AU
Eccentricity
0.2113
Perihelion
0.858 AU
Aphelion
1.317894 AU
Inclination
4.63°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
27.68°

Orbit diagram

The Sun sits at the focus (orange). Earth's orbit is the grey circle at 1 AU. The red dot marks the object's position at the catalog epoch.

3D orbit (interactive)

Drag to rotate; scroll or pinch to zoom. The Sun is at the focus (orange), Earth's orbit is the grey ring at 1 AU, and the red dot marks the object's current position.

Close approaches

Predicted close approaches to Earth, from NASA's Center for Near-Earth Object Studies (CNEOS).

Date (UTC)Miss distanceVelocity
2031-Nov-08 05:05 0.248152 AU
37122938 km
14.44 km/s
2032-Aug-25 00:16 0.306644 AU
45873220 km
6.30 km/s
2033-May-04 21:13 0.039300 AU
5879263 km
8.32 km/s
2040-Oct-11 23:40 0.206247 AU
30854155 km
4.79 km/s
2041-Feb-11 13:24 0.147150 AU
22013347 km
5.22 km/s
2041-Jun-10 06:46 0.213094 AU
31878347 km
4.40 km/s
2048-Nov-17 08:06 0.078467 AU
11738498 km
8.44 km/s
2049-Jul-31 04:39 0.312739 AU
46785092 km
6.25 km/s
2050-May-15 23:28 0.266394 AU
39851919 km
14.09 km/s
2056-Oct-31 12:09 0.416808 AU
62353551 km
19.14 km/s
2057-Sep-15 10:30 0.273410 AU
40901535 km
5.87 km/s
2065-Nov-21 12:43 0.027930 AU
4178279 km
6.13 km/s
2066-Jul-21 15:41 0.298683 AU
44682297 km
6.04 km/s
2067-May-19 16:45 0.289800 AU
43353420 km
16.05 km/s
2073-Nov-01 05:36 0.249272 AU
37290515 km
18.69 km/s

Distances in astronomical units (AU) and kilometres. Source: NASA/JPL CNEOS Close Approach Data API.

Physical Parameters

Diameter
— km
Albedo
—
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
27.1

Orbit Quality

RMS
0.42418
Condition
6
Orbit ID
—
Data source: NASA JPL Small-Body Database · NASA CNEOS. Orbital periods, perihelion and aphelion speeds, and diameter estimates on this page are computed by SpaceAtlas from the JPL SBDB orbital elements. They are derived quantities, not values copied from the source catalogue.

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